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河南舞阳赵案庄型铁矿成矿特征及矿床成因

GENESIS AND MINEROGENETIC CHARACTERISTICS OF THE IRON DEPOSIT OF ZAOANZHUANG TYPE IN THE WUYANG REGION, HENAN PROVINCE

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【作者】 俞受鋆庄龙池李善择李兆聪刘抗娟

【Author】 Yu Shouyun;Zhuang Longchi;Li Shanze;Li Zhaoeong;Liu Kangjuan Zhongshan University, Guangzhou

【机构】 广州中山大学广州中山大学

【摘要】 <正> 赵案庄型铁矿主要分布于舞阳八台矿田,包括赵案庄、王道行、下曹、余庄、梁岗、杨庄寨、蔡胡同及苗庄等矿床(图1),东西长约5公里,南北宽约2公里,面积约8平方公里。全部为埋藏第四系下的隐伏矿床。

【Abstract】 The iron deposit of Zaoanzhuang type occurs in the ultrabasic unit of a lateArchaean greenstone belt. It is a late magmatic apatite-titanomagnetite deposit, subse-quently enriched by hydrothermal superimposition and regional metamorphism. This deposit is extremely complex in mineralogy, containing 87 kinds of mineralscharacteristic of ultrabasic-alkaline complexes. Mineralization of iron, titanium and phosphorus took place mainly during themagmatic stage, while that of uranium and thorium during the pneumatolytic-hydro-thermal stage.

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